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Impacts of the annual cycle of background SST in the tropical Pacific on the phase and amplitude of ENSO

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Atmospheric and Oceanic Science Letters 2025年第1期18卷 12-17页

作者： Song Jiang Congwen zhu Ning Jiang State Key Laboratory of Severe Weather(LASW) Chinese Academy of Meteorological SciencesBeijingChina College of Earth and Planetary Sciences University of Chinese Academy of SciencesBeijingChina

The dominant annual cycle of sea surface temperature(SST)in the tropical Pacific exhibits an antisymmetric mode,which explains 83.4%total variance,and serves as a background of El Niño-Southern Oscillation(ENSO).However,there is no consensus yet on its anomalous impacts on the phase and amplitude of *** on data during 1982-2022,results show that anomalies of the antisymmetric mode can affect the evolution of ENSO on the interannual scale via Bjerknes feedback,in which the positive(negative)phase of the antisymmetric mode can strengthen El Niño(La Niña)in boreal winter via an earlier(delayed)seasonal cycle transition and larger(smaller)annual *** magnitude of the SST anomalies in the equatorial eastern Pacific can reach more than±0.3◦C,regulated by the changes in the antisymmetric mode based on random sensitivity *** reveal the spatial pattern of the annual cycle associated with the seasonal phase-locking of ENSO evolution and provide new insight into the impact of the annual cycle of background SST on ENSO,which possibly carries important implications for forecasting ENSO.

关键词： Annual cycle SST anomaly Antisymmetric mode ENSO

Satellite remote sensing reveals overwhelming recovery of forest from disturbances in Asia

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Atmospheric and Oceanic Science Letters 2025年第1期18卷 46-51页

作者： Yiying zhu Hesong Wang Anzhi Zhang School of Ecology and Nature Conservation Beijing Forestry UniversityBeijingChina Key Laboratory of Regional Climate and Environment for Temperate East Asia Institute of Atmospheric PhysicsChinese Academy of SciencesBeijingChina College of Forestry and Landscape Architecture Xinjiang Agricultural UniversityUrumqiChina

Forest ecosystems play key roles in mitigating human-induced climate change through enhanced carbon uptake;however,frequently occurring climate extremes and human activities have considerably threatened the stability of *** the same time,detailed accounts of disturbances and forest responses are not yet well quantified in *** study employed the Breaks For Additive Seasonal and Trend method-an abrupt-change detection method-to analyze the Enhanced Vegetation Index time series in East Asia,South Asia,and Southeast *** approach allowed us to detect forest disturbance and quantify the resilience after *** showed that 20%of forests experienced disturbance with an increasing trend from 2000 to 2022,and Southeast Asian countries were more severely affected by ***,95%of forests had robust resilience and could recover from disturbance within a few *** resilience of forests suffering from greater magnitude of disturbance tended to be stronger than forests with lower disturbance *** summary,this study investigated the resilience of forests across the low and middle latitudes of Asia over the past two *** authors found that most forests exhibited good resilience after disturbance and about two-thirds had recovered to a better state in *** findings of this study underscore the complex relationship between disturbance and resilience,contributing to comprehension of forest resilience through satellite remote sensing.

关键词： Forest ecosystem Enhanced vegetation index Breaks for additive seasonal and trend method Disturbance Resilience

Improved air quality and reduced burden of preterm birth in China:2013–2017

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Science Bulletin 2022年第9期67卷 879-882,M0003页

作者： Yixuan Jiang Yuan He Shenpeng Wu Renjie Chen Ying Yang Jihong Xu Ya Zhang Qiaomei Wang Haiping Shen Yiping Zhang Donghai Yan Zuoqi Peng Xudong Dong Hongping Zhang Lifang Jiang Huichu Li yixiang zhu Cong Liu Weidong Wang Xia Meng Tao Pei Ci Song Aaron Cohen Xu Ma Jing Cai Haidong Kan School of Public Health Key Lab of Public Health Safety of the Ministry of Education and NHC Key Lab of Health Technology AssessmentFudan UniversityShanghai 200032China National Research Institute for Health and Family Planning Beijing 100081China National Human Genetic Resources Center Beijing 101199China Peking Union Medical College Beijing 100730China Chinese Academy of Medical Sciences Beijing 100730China Department of Maternal and Child Health National Health Commission of the People’s Republic of ChinaBeijing 100044China The Obstetrical Department of the First People’s Hospital of Yunnan Province The Affiliated Hospital of Kunming University of Science and TechnologyKunming 650500China Wenzhou People’s Hospital Wenzhou Maternal and Child Health Care HospitalThe Third Clinical Institute Affiliated to Wenzhou Medical UniversityWenzhou 305006China National Health Commission Key Laboratory of Birth Defects Prevention Henan Key Laboratory of Population Defects PreventionHenan Institute of Reproduction Health Science and TechnologyZhengzhou 450002China Department of Environmental Health Harvard T.H.Chan School of Public HealthBoston 02115USA State Key Laboratory of Resources and Environmental Information System Institute of Geographical Sciences and Natural Resources ResearchChinese Academy of SciencesBeijing 100101China College of Resources and Environment University of Chinese Academy of SciencesBeijing 101408China Health Effects Institute Boston 02110USA Institute for Health Metrics and Evaluation University of WashingtonSeattle 98195USA Children’s Hospital of Fudan University National Center for Children’s HealthShanghai 201102China

Preterm birth(PTB)is a leading cause of perinatal mortality and morbidity worldwide[1].Since maternal and fetal health protection has been included in the United Nations Sustainable Development Goals,identification of modifiable risk factors for PTB is particularly *** Global Burden of Disease(GBD)Study 2019 recognized fine particulate matter(PM2.5)pollution as a risk factor for decreased gestational age and low birth weight.

关键词： pollution 空气质量改善疾病负担

Rock fracture mechanism of buffer blasting with cushion layer at the borehole bottom

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International Journal of Minerals,Metallurgy and Materials 2025年第2期32卷 325-334页

作者： Xinguang zhu Chenxi Ding Zhe Sui Hong Su Xu Guo School of Civil and Resources Engineering University of Science and Technology BeijingBeijing 100083China Key Laboratory for Mechanics in Fluid Solid Coupling Systems Institute of MechanicsChinese Academy of SciencesBeijing 100190China School of Mechanics and Civil Engineering China University of Mining and Technology(Beijing)Beijing 100083China School of Chemical and Blasting Engineering Anhui University of Science and TechnologyHuainan 232001China

This study primarily investigates the rock fracture mechanism of bottom cushion layer blasting and explores the effects of the bottom cushion layer on rock *** involves analyses of the evolution patterns of blasting stress,characteristics of crack distribution,and rock fracture features in the ***,blasting model experiments were carried out using the dynamic caustics principle to investigate the influence of bottom cushion layers and initiation methods on the integrity of the bottom rock *** experimental results indicate that the combined use of bottom cushion layers and inverse initiation effectively protects the integrity of the bottom rock ***,the process of stress wave propagation and dynamic crack propagation in rocks was simulated using the continuum-discontinuum element method(CDEM)and the Landau explosion source model,with varying thicknesses of bottom cushion *** numerical simulation results indicate that with increasing cushion thickness,the absorption of energy generated by the explosion becomes more pronounced,resulting in fewer cracks in the bottom rock *** illustrates the positive role of the cushion layer in protecting the integrity of the bottom rock mass.

关键词： bottom cushion layer blasting crack propagation continuum-discontinuum element method dynamic stress intensity factor

用穆斯堡尔谱学研究Fe2O3-K2O-CaO催化剂

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厦门大学学报(自然科学版) 1988年第6期 633-638页

作者：陈荣钦祝以湘厦门大学物理学系厦门大学化学系

应用穆斯堡尔谱学方法,结合X-射线衍射分析,考察了K2O、CaO与Fe2O3的相互作用及其对催化行为的影响,结果表明:催化剂的相组成与其锻烧温度密切相关,K2O与Fe2O3的相互作用主要生成KFe11O17,它是催化剂的主要物?之一,得出了其中四种配位环... 详细信息

应用穆斯堡尔谱学方法,结合X-射线衍射分析,考察了K2O、CaO与Fe2O3的相互作用及其对催化行为的影响,结果表明:催化剂的相组成与其锻烧温度密切相关,K2O与Fe2O3的相互作用主要生成KFe11O17,它是催化剂的主要物?之一,得出了其中四种配位环境Fe3+的穆斯堡尔参数,也讨论了CaO助催作用的本质。

关键词：穆斯量尔谱学氧化铁系催化剂乙?脱氢谈?钾(KFe11O17

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河流相地层相分异与沉积物体积分配规律

石油与天然气地质 2005年第3期26卷 356-360页

作者：李宏伟袁士义朱怡翔田昌炳范军侠闫林中国石油勘探开发研究院北京100083 中国地质大学能源系北京100083

基准面升降伴随着可容纳空间的变化,导致沉积物在不同相域发生剥蚀、搬运、过路、沉积或欠补偿作用而形成旋回性沉积地层。陆相地层等时对比中的同期不等厚现象是相分异与沉积物体积分配作用的地层响应。在平行物源的方向上,岩相类型可... 详细信息

基准面升降伴随着可容纳空间的变化,导致沉积物在不同相域发生剥蚀、搬运、过路、沉积或欠补偿作用而形成旋回性沉积地层。陆相地层等时对比中的同期不等厚现象是相分异与沉积物体积分配作用的地层响应。在平行物源的方向上,岩相类型可以由辨状河相序向曲流河相序以及三角洲相序迁移;而在垂直物源的方向上,岩相类型可以由河流相的河道充填沉积向河道间的溢岸沉积与漫滩沉积变迁,或者由三角洲相的分流河道沉积相变为分流间湾沉积。相分异过程伴随着沉积物的体积分配,使同一时期发育的地层在不同相域内分配的体积不同。古地貌对河流相产层分布具控制作用。古水流的搬运作用形成沿层序界面之上可容纳空间较大的古地貌低势区展市的各地充填河道砂体。

关键词：层序地层地层对比相分异沉积物体积分配古河道砂体预测

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鼻内镜手术患者的护理干预方式研究

上海医药 2017年第20期38卷 29-30,36页

作者：刘国英徐义香朱小芳江西丰城市人民医院五官科江西丰城331100

目的 :研究分析鼻内镜手术治疗慢性鼻窦炎伴鼻息肉患者的护理干预方式。方法 :收集2014年8月—2016年8月收治的慢性鼻窦炎和鼻息肉患者42例,均予以鼻内镜手术治疗,随机分为常规组和干预组各21例,常规组施予常规护理干预,干预组施予综合... 详细信息

目的 :研究分析鼻内镜手术治疗慢性鼻窦炎伴鼻息肉患者的护理干预方式。方法 :收集2014年8月—2016年8月收治的慢性鼻窦炎和鼻息肉患者42例,均予以鼻内镜手术治疗,随机分为常规组和干预组各21例,常规组施予常规护理干预,干预组施予综合性护理干预,观察两组治疗效果,并采用自拟调查问卷表调查患者护理满意情况。结果:干预组治疗总有效率为90.5%(19/21),护理满意度为95.2%,对照组分别为67.7%(14/21)和71.4%,组间差异有统计学意义(P均<0.05)。结论 :对行鼻内镜手术治疗的慢性鼻窦炎伴鼻息肉患者予以综合性护理干预,在提高治疗效果的同时,还可提高患者护理满意度,有利于患者术后康复。

关键词：鼻窦炎鼻息肉护理干预鼻内镜手术

一种基于逆高斯纹理的MIMO雷达AMF检测算法

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电子测量技术 2020年第17期43卷 62-65页

作者：周寒瑜祝怡翔陆龙河海大学计算机与信息学院南京211100

研究了在复合高斯杂波环境下利用先验知识解决多输入多输出(MIMO)雷达目标检测的问题,通过将复合高斯模型下的纹理分量描述为逆高斯分布,并基于两步广义似然比计算准则,设计了一种基于MIMO雷达系统的复合高斯杂波环境下的自适应匹配滤波... 详细信息

研究了在复合高斯杂波环境下利用先验知识解决多输入多输出(MIMO)雷达目标检测的问题,通过将复合高斯模型下的纹理分量描述为逆高斯分布,并基于两步广义似然比计算准则,设计了一种基于MIMO雷达系统的复合高斯杂波环境下的自适应匹配滤波(两步广义似然比,AMF)检测算法。研究了MIMO雷达中输入、输出天线的个数对检测算法的影响,通过对该算法的仿真,结果表明与MIMO体制下传统的AMF检测算法和MIMO体制下球不变随机矢量模型下的AMF检测算法相比,该检测算法具有更优的检测性能。

关键词：信号与信息处理逆高斯分布 MIMO雷达目标检测海杂波

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低效气藏资源特征及高效开发战略思考

天然气工业 2004年第1期24卷 4-6页

作者：田昌炳罗凯朱怡翔石油大学中国石油勘探开发研究院

我国天然气总资源量构成中有着相当数量的低效天然气藏资源量 ,后者储量约占全国天然气总储量的 70 %。这些天然气在储量的级别上大多隶属于基本探明的Ⅲ类储量 ,且在各盆地的分布极不均衡 ,同时还具有地质因素复杂、储量级别低、储量... 详细信息

我国天然气总资源量构成中有着相当数量的低效天然气藏资源量 ,后者储量约占全国天然气总储量的 70 %。这些天然气在储量的级别上大多隶属于基本探明的Ⅲ类储量 ,且在各盆地的分布极不均衡 ,同时还具有地质因素复杂、储量级别低、储量丰度低、气井产能低等特点。要开发利用好这些低效的气田或气藏 ,在技术和经济层面上都有着较大的难度。但低效气藏毕竟也是一种宝贵资源 ,对这种特殊资源的开发 :第一必须做好开发早期的地质研究 ,搞清其地质特征及分布规律 ,依靠技术进步提高开发采收率 ;第二对低效气藏应做出客观可行的评价 ,分析低效气藏中相对高效气藏形成的主控因素 ,差中选优 ;第三坚持走可持续发展的道路 ,保持经济和社会的同步持续发展 ,以持续的方式使用低效天然气这一不可再生的资源。

关键词：低效气藏开发战略储量储层采收率地质